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3 years ago

Find 2x2 - 2z4 + y2 - x2 + z4 if x = -4, y = 3, and z = 2.

1 answer:

8 0

X = - 4; y = 3; z = 2;
2 x² - 2 z^4 + y² - x² + z^4 =
= 2 * (-4)² - 2 * 2^4 + 3² - ( -4)² + 2^4 =
= 2 * 16 - 2 * 16 + 9 - 16 + 16 =
= 32 - 32 + 9 - 16 + 16 = 9

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The manufacturer of Pepsi claims that its 2-liter bottles contain, on average, no more than 250 calories. A sample of 20 2-liter

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Answer:

Yes, Sample information does indicate that a 2-liter bottle of Pepsi contains more than 250 calories

Step-by-step explanation:

Null Hypothesis [H0] : u < 250

Alternate Hypothesis [H1] : u > 250 {One Tail}

t = (x' - u) / [ sd / √n ]

= (255 - 250) / (5.6 / √20)

5 / (5.6 /√20)

= 3.99

As t ie 3.99 > t value 1.65 ie for one tail 95% confidence level. So, we reject the null hypothesis & conclude that it contains more than 250 calories.

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2 years ago

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A member ship at the gym cost 5 dollars a month plus a locker holding fee of 10 dollars

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3 years ago

Read 2 more answers

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Sladkaya [172]

Answer:

y = -4x - 1

Step-by-step explanation:

Do the slope formula first to find the slope. Next do point slope form to find the y intercept and write the equation in slope intercept form.

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2 years ago

(5,2), (-2,5),(2,5),(-5,2)

Alecsey [184]

Answer:

the second row is not a function! top row is a function

Step-by-step explanation:

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3 years ago

The angles of a quadrilateral measure 80, 100, 100, 80 in this order what kind of quadrilateral has this shape what attributes h

Harrizon [31]

Answer:

Isosceles trapezoid

Step-by-step explanation:

-An isosceles trapezoid is also sometimes called a convex quadrilateral.

-It properties include:

A line of symmetry can often bisects a pair of opposite sides.

It has to obtuse alternating with each other after which a pair of acute angles alternate with each other i.e 80°, 80°,100°,100°
It has a trapezoidal shape which by definition has a two pair of parallel sides.
The angles on it's base or ceiling are equal hence the name Isosceles Trapezoid.

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3 years ago